save project

snake.py

@@ -6,29 +6,57 @@ pygame.init()
 
 
 # 创建一个窗口
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 screen = pygame.display.set_mode((660, 480))
-o=pygame.time.Clock()
+s=pygame.time.Clock()
 
 
 # 背景
 # 背景
 background = pygame.image.load('bg.png')
 background = pygame.image.load('bg.png')
-right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 body = pygame.image.load('body.png')
+up=pygame.image.load('up.png')
+down=pygame.image.load('down.png')
+right = pygame.image.load('right.png')
+left=pygame.image.load('left.png')
+
 
 
 x,y=240,120
 x,y=240,120
 p=[(180, 90),(180, 120),(210, 120),(x,y)]
 p=[(180, 90),(180, 120),(210, 120),(x,y)]
 
 
+o='right'
+w=right
+
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
+        if event.type == locals.KEYDOWN:
+            if event.key==locals.K_LEFT and o!='right':
+                o='left'
+                w=left
+            if event.key==locals.K_RIGHT and o!='left':
+                o='right'
+                w=right
+            if event.key==locals.K_UP and o!='down':
+                o='up'
+                w=up
+            if event.key==locals.K_DOWN and o!='up':
+                o='down'
+                w=down
+
+    if o=='right':
         x+=30
         x+=30
+    elif o=='left':
+        x-=30
+    elif o=='up':
+        y-=30
+    else:
+        y+=30
     p.append((x,y))
     p.append((x,y))
     p.pop(0)
     p.pop(0)
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
-    screen.blit(right,p[-1])
+    screen.blit(w,p[-1])
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
     for i in range(len(p)-1):
     for i in range(len(p)-1):
         screen.blit(body,p[i])
         screen.blit(body,p[i])
@@ -36,4 +64,4 @@ while True:
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
-    o.tick(3)
+    s.tick(3)
\ No newline at end of file